which master cylinder?

An inexpensive 7/8" bore MC which works is for a 1995-99 "cloud car" (Breeze, Stratus, Cirrus) w/ ABS (2 ports). You will need a 2 to 4 bolt adapter plate ($30 ebay). I have one on my 1964 Valiant (manual), 1965 Dart (w/ Intrepid booster on Dart firewall brackets, see profile photo), and 1965 Newport (2-4 adapter to factory booster). Search for my post w/ photo showing that the pedal winds up in the same place w/ the Breeze MC on adapter plate as the factory manual MC. I have a new MC w/ reservoir on the shelf now as a spare for all 3 cars, which might have cost $25 on ebay.

I expect something from the GM or Ford racks might also work. I just grabbed something newish from the Mopar rows while at PicNPull years ago. If you go with a 2000+ MC, you run into bubble-flare fittings, which you can form with an old dbl-flare tool (youtube), but why bother.